If you want to set up an additional device just repeat the previously described steps.
If you've got a new device and no longer have access to your existing one, you should remove that device. You can do this on the final confirmation screen after setting up your Digital Secure Key.
Alternatively you can also do it by:
- opening the first direct App
- going to 'Security Settings'
- selecting 'Manage devices'
- removing the device.
If you're using Online Banking, simply log on and select 'Manage security' from the left-hand menu.